diff --git a/VectoCore/VectoCore/OutputData/XML/DeclarationReports/Common/ResultWriter.cs b/VectoCore/VectoCore/OutputData/XML/DeclarationReports/Common/ResultWriter.cs
index 5d33b22777e2f4ecb5f226ee6827f466420b8e6c..117a0414124adb5b689dd376cf46be607bc2c556 100644
--- a/VectoCore/VectoCore/OutputData/XML/DeclarationReports/Common/ResultWriter.cs
+++ b/VectoCore/VectoCore/OutputData/XML/DeclarationReports/Common/ResultWriter.cs
@@ -23,7 +23,7 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.Common
 		protected XNamespace TNS { get; }
 
 
-		protected XElement GetPrimaryBusSubGroupElement(IResultEntry entry)
+		protected virtual XElement GetPrimaryBusSubGroupElement(IResultEntry entry)
 		{
 			if (entry.VehicleClass.IsCompletedBus())
 			{
@@ -186,9 +186,9 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.Common
 
 	// ----- bus
 
-	public class BusConvResultWriter : ResultWriterBase
+	public class BusConvMRFResultWriter : ResultWriterBase
 	{
-		public BusConvResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
+		public BusConvMRFResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
 
 		#region Overrides of CIFResultWriterBase
 
@@ -199,9 +199,19 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.Common
 		#endregion
 	}
 
-	public class BusHEVNonOVCResultWriter : ResultWriterBase
+	public class BusConvCIFResultWriter : BusConvMRFResultWriter
+    {
+		public BusConvCIFResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
+
+		protected override XElement GetPrimaryBusSubGroupElement(IResultEntry entry)
+		{
+			return null;
+		}
+	}
+
+    public class BusHEVNonOVCMRFResultWriter : ResultWriterBase
 	{
-		public BusHEVNonOVCResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
+		public BusHEVNonOVCMRFResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
 
 		#region Overrides of CIFResultWriterBase
 
@@ -212,9 +222,19 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.Common
 		#endregion
 	}
 
-	public class BusPEVResultWriter : ResultWriterBase
+	public class BusHEVNonOVCCIFResultWriter : BusHEVNonOVCMRFResultWriter
+    {
+		public BusHEVNonOVCCIFResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
+
+		protected override XElement GetPrimaryBusSubGroupElement(IResultEntry entry)
+		{
+			return null;
+		}
+    }
+
+	public class BusPEVMRFResultWriter : ResultWriterBase
 	{
-		public BusPEVResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
+		public BusPEVMRFResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
 
 		#region Overrides of CIFResultWriterBase
 
@@ -225,11 +245,20 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.Common
 		#endregion
 	}
 
+	public class BusPEVCIFResultWriter : BusPEVMRFResultWriter
+    {
+		public BusPEVCIFResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
 
-	public class BusHEVOVCResultWriter : AbstractResultGroupWriter
+		protected override XElement GetPrimaryBusSubGroupElement(IResultEntry entry)
+		{
+			return null;
+		}
+    }
+
+	public class BusHEVOVCMRFResultWriter : AbstractResultGroupWriter
 	{
 
-		public BusHEVOVCResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
+		public BusHEVOVCMRFResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
 
 		#region Implementation of IResultGroupWriter
 
@@ -259,6 +288,18 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.Common
 		protected virtual string ResultXMLType => "ResultSuccessOVCHEVType";
 	}
 
+	public class BusHEVOVCCIFResultWriter : BusHEVOVCMRFResultWriter
+    {
+
+		public BusHEVOVCCIFResultWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
+
+		protected override XElement GetPrimaryBusSubGroupElement(IResultEntry entry)
+		{
+			return null;
+		}
+
+    }
+
 	public class BusOVCChargeDepletingWriter : AbstractResultGroupWriter
 	{
 		public BusOVCChargeDepletingWriter(ICommonResultsWriterFactory factory, XNamespace ns) : base(factory, ns) { }
diff --git a/VectoCore/VectoCore/OutputData/XML/DeclarationReports/CustomerInformationFile/CustomerInformationFile_0_9/CIFResultsNinjectModule.cs b/VectoCore/VectoCore/OutputData/XML/DeclarationReports/CustomerInformationFile/CustomerInformationFile_0_9/CIFResultsNinjectModule.cs
index 537528d82391509e9b07812561f2b3b87d4f9244..0db9dff451e457c36a3da0e3b607ce30ef3add2b 100644
--- a/VectoCore/VectoCore/OutputData/XML/DeclarationReports/CustomerInformationFile/CustomerInformationFile_0_9/CIFResultsNinjectModule.cs
+++ b/VectoCore/VectoCore/OutputData/XML/DeclarationReports/CustomerInformationFile/CustomerInformationFile_0_9/CIFResultsNinjectModule.cs
@@ -114,13 +114,13 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.CustomerInformation
 
 			// -- Bus
 
-			Bind<IResultGroupWriter>().To<BusConvResultWriter>().When(AccessedViaCIFResultsWriterFactory)
+			Bind<IResultGroupWriter>().To<BusConvCIFResultWriter>().When(AccessedViaCIFResultsWriterFactory)
 				.NamedLikeFactoryMethod((ICIFResultsWriterFactory c) => c.GetBusConvSuccessResultWriter(null, XNamespace.None));
-			Bind<IResultGroupWriter>().To<BusHEVNonOVCResultWriter>().When(AccessedViaCIFResultsWriterFactory)
+			Bind<IResultGroupWriter>().To<BusHEVNonOVCCIFResultWriter>().When(AccessedViaCIFResultsWriterFactory)
 				.NamedLikeFactoryMethod((ICIFResultsWriterFactory c) => c.GetBusHEVNonOVCSuccessResultWriter(null, XNamespace.None));
-			Bind<IResultGroupWriter>().To<BusHEVOVCResultWriter>().When(AccessedViaCIFResultsWriterFactory)
+			Bind<IResultGroupWriter>().To<BusHEVOVCCIFResultWriter>().When(AccessedViaCIFResultsWriterFactory)
 				.NamedLikeFactoryMethod((ICIFResultsWriterFactory c) => c.GetBusHEVOVCSuccessResultWriter(null, XNamespace.None));
-			Bind<IResultGroupWriter>().To<BusPEVResultWriter>().When(AccessedViaCIFResultsWriterFactory)
+			Bind<IResultGroupWriter>().To<BusPEVCIFResultWriter>().When(AccessedViaCIFResultsWriterFactory)
 				.NamedLikeFactoryMethod((ICIFResultsWriterFactory c) => c.GetBusPEVSuccessResultWriter(null, XNamespace.None));
 			Bind<IResultGroupWriter>().To<ErrorResultWriter>().When(AccessedViaCIFResultsWriterFactory)
 				.NamedLikeFactoryMethod((ICIFResultsWriterFactory c) => c.GetBusErrorResultWriter(null, XNamespace.None));
diff --git a/VectoCore/VectoCore/OutputData/XML/DeclarationReports/ManufacturerReport/ManufacturerReport_0_9/MRFResultsNinjectModule.cs b/VectoCore/VectoCore/OutputData/XML/DeclarationReports/ManufacturerReport/ManufacturerReport_0_9/MRFResultsNinjectModule.cs
index 0560c49efb8ab76f63e5a353b6433088408b0575..9528fd23fbc51ded34cab9d9f2d292ecc00e6b75 100644
--- a/VectoCore/VectoCore/OutputData/XML/DeclarationReports/ManufacturerReport/ManufacturerReport_0_9/MRFResultsNinjectModule.cs
+++ b/VectoCore/VectoCore/OutputData/XML/DeclarationReports/ManufacturerReport/ManufacturerReport_0_9/MRFResultsNinjectModule.cs
@@ -124,13 +124,13 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.CustomerInformation
 
             // -- Bus
 
-            Bind<IResultGroupWriter>().To<BusConvResultWriter>().When(AccessedViaMRFResultsWriterFactory)
+            Bind<IResultGroupWriter>().To<BusConvMRFResultWriter>().When(AccessedViaMRFResultsWriterFactory)
                 .NamedLikeFactoryMethod((IMRFResultsWriterFactory c) => c.GetBusConvSuccessResultWriter(null, XNamespace.None));
-            Bind<IResultGroupWriter>().To<BusHEVNonOVCResultWriter>().When(AccessedViaMRFResultsWriterFactory)
+            Bind<IResultGroupWriter>().To<BusHEVNonOVCMRFResultWriter>().When(AccessedViaMRFResultsWriterFactory)
                 .NamedLikeFactoryMethod((IMRFResultsWriterFactory c) => c.GetBusHEVNonOVCSuccessResultWriter(null, XNamespace.None));
-            Bind<IResultGroupWriter>().To<BusHEVOVCResultWriter>().When(AccessedViaMRFResultsWriterFactory)
+            Bind<IResultGroupWriter>().To<BusHEVOVCMRFResultWriter>().When(AccessedViaMRFResultsWriterFactory)
                 .NamedLikeFactoryMethod((IMRFResultsWriterFactory c) => c.GetBusHEVOVCSuccessResultWriter(null, XNamespace.None));
-            Bind<IResultGroupWriter>().To<BusPEVResultWriter>().When(AccessedViaMRFResultsWriterFactory)
+            Bind<IResultGroupWriter>().To<BusPEVMRFResultWriter>().When(AccessedViaMRFResultsWriterFactory)
                 .NamedLikeFactoryMethod((IMRFResultsWriterFactory c) => c.GetBusPEVSuccessResultWriter(null, XNamespace.None));
             Bind<IResultGroupWriter>().To<ErrorResultWriter>().When(AccessedViaMRFResultsWriterFactory)
                 .NamedLikeFactoryMethod((IMRFResultsWriterFactory c) => c.GetBusErrorResultWriter(null, XNamespace.None));
diff --git a/VectoCore/VectoCore/OutputData/XML/DeclarationReports/ManufacturerReport/ManufacturerReport_0_9/ManufacturerReportGroupWriter/CompletedBus/CompletedBus.cs b/VectoCore/VectoCore/OutputData/XML/DeclarationReports/ManufacturerReport/ManufacturerReport_0_9/ManufacturerReportGroupWriter/CompletedBus/CompletedBus.cs
index afee30627f100937a51f6835cd002037e47dee37..9eb2bb955f59dc2e044cbaa4e6a9d0198d30500e 100644
--- a/VectoCore/VectoCore/OutputData/XML/DeclarationReports/ManufacturerReport/ManufacturerReport_0_9/ManufacturerReportGroupWriter/CompletedBus/CompletedBus.cs
+++ b/VectoCore/VectoCore/OutputData/XML/DeclarationReports/ManufacturerReport/ManufacturerReport_0_9/ManufacturerReportGroupWriter/CompletedBus/CompletedBus.cs
@@ -38,6 +38,9 @@ namespace TUGraz.VectoCore.OutputData.XML.DeclarationReports.ManufacturerReport.
 		protected virtual XElement GetNGTankSystem(IMultistepBusInputDataProvider multiStageInputData)
 		{
 			var consolidatedVehicleData = multiStageInputData.JobInputData.ConsolidateManufacturingStage.Vehicle;
+			if (consolidatedVehicleData.TankSystem == null) {
+				return null;
+			}
 			return new XElement(_mrf + XMLNames.Vehicle_NgTankSystem, consolidatedVehicleData.TankSystem);
 		}